无补于事

無補於事
wúbǔyúshì

synonym of 於事無補 /于事无补 (yúshìwúbǔ, “unhelpful or useless to the situation”)

Wiktionary

Entry Composition

1 无补 wúbǔ
  1. of no avail
  2. not helping in the least
=2 于 Yú surname Yu
=2 于 yú
  1. to go
  2. to take
  3. sentence-final interrogative particle
  4. variant of 于 yú
=2 于 yú
  1. (of time or place) in; at; on
  2. (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for
  3. (indicating a source) from; out of
  4. (used in comparison) than
  5. (used in the passive voice) by
=3 事 shì
  1. matter
  2. thing
  3. item
  4. work
  5. affair

classifiers: 件, 樁, 回
=3 事 zì
  1. alternative form of 倳 (zì, “to establish”)
  2. alternative form of 剚 (zì, “to stab”)